You invest $100 in a risky asset with an expected rate of return of 0.11 and a standard deviation of 0.20 and a T-bill with a rate of return of 0.03. What percentages of your money must be invested in the risk-free asset and the risky asset, respectively, to form a portfolio with a standard deviation of 0.08?'

a) 40% and 60%

b) 60% and 40%

c) 30% and 70%

d) cant be determined

e) 50 - 50